#include "encoder.h"
int decoder(char * pdata,int nlen)
{	
	for (int i = 0;i<nlen;i++)
	{
		pdata[i]^=0xaa;
	}
	return 0;
}

int encoder(char * pdata,int nlen)
{
	for (int i = 0;i<nlen;i++)
	{
		pdata[i]^=0xaa;
	}
	return 0;
}

